Knife



FIG. 1 is a side perspective view of a knife showing my new design;

FIG. 2 is an enlarged rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an enlarged front elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is right side elevation view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a knife, as shown and described. 